Add multiprocessing support for frozen environment

main.py

@@ -1,5 +1,10 @@
 import os
 import sys
+import multiprocessing
+
+if __name__ == "__main__":
+    multiprocessing.freeze_support()
+
 EARLY_IS_FROZEN = getattr(sys, "frozen", False)
 EARLY_BASE_DIR = os.path.dirname(sys.executable) if EARLY_IS_FROZEN else os.path.dirname(os.path.abspath(__file__))
 EARLY_APP_SUPPORT_DIR = os.path.join(